In summary

This timeline tracks how California state and local governments tackled the evolving COVID-19 crisis since the first case was detected. 

As the novel coronavirus crisis unfolds, events and days can seem to blend together.

The timeline below tracks key state and local actions along with relevant federal and even global context about the pandemic. You can jump to Day 1 here.

Jackie Botts, John Osborn D’Agostino, Matt Levin, and Richard Procter contributed to this timeline.

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Total number of Californians tested comes from daily press releases from the California Department of Public Health. Total positive cases and total deaths comes from the New York Times coronavirus database. There is about a one- or two-day delay in the reporting of testing and case numbers. Hospital patient numbers come from the California Open Data portal starting March 31, 2020, and those numbers are approximate as not every hospital has reported their numbers to the state. Hospitalizations numbers can be found here.

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More on the coronavirus in California:

Tracking coronavirus hospitalizations in California by county

CalMatters is tracking positive and suspected cases of COVID-19 in patients who are hospitalized throughout the state, broken down by county.

California’s response to coronavirus, explained

Gov. Gavin Newsom says the state appears to be flattening the curve. We unravel the response to the coronavirus outbreak and look at what lies ahead.

Timeline: California reacts to coronavirus

This timeline tracks how California state and local governments tackled the evolving COVID-19 crisis since the first case was detected.

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